package com.inerface2;

import java.util.Collection;
import java.util.LinkedList;

public class Test {
    public static void main(String[] args) {

        SonClass_1 sonClass_1 = new SonClass_1();

        SonClass_2 sonClass_2 = new SonClass_2();


        sonClass_1.justDoIt();
        sonClass_2.justDoIt();


    }
}
